/* Gotera — hoja de estilos común */

:root {
  --paper: #f5f0df;
  --paper-alt: #e9e1c9;
  --ink-dark: #2f2a1e;
  --ink: #241f16;
  --ink-soft: #736b55;
  --accent: #8a6a1f;
  --accent-2: #4a6b52;
  --serif: Georgia, "Times New Roman", serif;
  --sans: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --step: 80px;
  --rule: rgba(115, 107, 85, 0.32);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.72;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover { text-decoration-thickness: 2px; }

a:focus-visible,
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- rejilla de 12 columnas ---------- */

.grid {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 24px;
}

/* columna de servicio (escala) */

.rail {
  grid-column: 1 / 3;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.rail-num {
  color: var(--accent-2);
  display: block;
  margin-bottom: 10px;
}

.rail-label { display: block; max-width: 12em; }

.ticks {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.ticks span {
  display: block;
  width: 1px;
  height: 24px;
  background: var(--rule);
}

.ticks span:nth-child(5n + 1) {
  width: 3px;
  background: var(--accent);
}

/* ---------- cabecera y navegación ---------- */

.site-header {
  border-bottom: 1px solid var(--rule);
  padding: 22px 0 20px;
}

.site-header .grid { align-items: baseline; row-gap: 14px; }

.brand {
  grid-column: 1 / 4;
  font-family: var(--serif);
  font-size: 25px;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover { color: var(--accent); }

.brand small {
  display: block;
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 4px;
}

.site-nav {
  grid-column: 5 / 13;
  justify-self: end;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 26px;
}

.site-nav a {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------- hero ---------- */

.hero { padding: 72px 0 var(--step); }

.hero h1 {
  grid-column: 3 / 12;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.005em;
  margin: 0 0 26px;
  max-width: 15ch;
}

.hero-lead {
  grid-column: 3 / 9;
  font-size: 19px;
  line-height: 1.68;
  margin: 0 0 18px;
}

.hero-note {
  grid-column: 3 / 9;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- secciones ---------- */

section { padding: var(--step) 0; }

.band-alt { background: var(--paper-alt); }

.band-dark {
  background: var(--ink-dark);
  color: var(--paper);
}

.band-dark h2,
.band-dark h3 { color: var(--paper); }

.band-dark .rail,
.band-dark .caption { color: #c3bba0; }

.band-dark .rail-num { color: #9db99f; }

.band-dark .ticks span { background: rgba(245, 240, 223, 0.28); }

.band-dark .ticks span:nth-child(5n + 1) { background: #c9a54c; }

.band-dark a { color: #d9b45f; }

h2 {
  grid-column: 3 / 11;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(26px, 2.6vw, 34px);
  line-height: 1.22;
  margin: 0 0 22px;
}

h3 {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 21px;
  line-height: 1.35;
  margin: 34px 0 10px;
}

.prose {
  grid-column: 3 / 10;
}

.prose p { margin: 0 0 18px; }

.prose > p:last-child { margin-bottom: 0; }

.prose h3:first-child { margin-top: 0; }

.dash {
  grid-column: 3 / 10;
  border: 0;
  height: 24px;
  width: 1px;
  background: var(--accent);
  margin: 30px 0;
}

/* listas en dos subcolumnas */

.list-wide {
  grid-column: 3 / 12;
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
  columns: 2;
  column-gap: 48px;
}

.list-wide li {
  break-inside: avoid;
  padding-left: 22px;
  position: relative;
  margin-bottom: 14px;
}

.list-wide li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 12px;
  height: 1px;
  background: var(--accent);
}

.list-wide strong { font-weight: 600; }

.steps {
  grid-column: 3 / 12;
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: paso;
}

.steps li {
  counter-increment: paso;
  padding-left: 46px;
  position: relative;
  margin-bottom: 20px;
}

.steps li::before {
  content: counter(paso, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent-2);
}

.steps li:last-child { margin-bottom: 0; }

/* ---------- imagen principal ---------- */

.plate { padding: var(--step) 0; }

.plate figure {
  grid-column: 4 / 13;
  margin: 0;
}

.plate img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.caption {
  grid-column: 1 / 4;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  align-self: start;
  padding-top: 2px;
}

.caption b {
  display: block;
  font-weight: 400;
  color: var(--accent-2);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* imagen de detalle en la sección oscura */

.detail-figure {
  grid-column: 3 / 7;
  margin: 0;
}

.detail-figure img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.detail-figure figcaption {
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.05em;
  color: #c3bba0;
  margin-top: 12px;
}

.detail-text { grid-column: 8 / 13; }

.detail-text h2 { grid-column: auto; }

.detail-text p { margin: 0 0 18px; }

.detail-text p:last-child { margin-bottom: 0; }

/* ---------- tabla de referencia ---------- */

.ref {
  grid-column: 3 / 12;
  border-top: 1px solid var(--rule);
}

.ref div {
  display: grid;
  grid-template-columns: 1fr 2.1fr;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.ref dt {
  font-family: var(--serif);
  font-size: 19px;
}

.ref dd { margin: 0; }

/* ---------- página interior ---------- */

.page-head { padding: 64px 0 40px; }

.page-head h1 {
  grid-column: 3 / 12;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.18;
  margin: 0 0 20px;
  max-width: 18ch;
}

.page-head p {
  grid-column: 3 / 10;
  margin: 0;
  color: var(--ink-soft);
  font-size: 18px;
}

.doc { padding: 0 0 var(--step); }

.doc .prose { grid-column: 3 / 10; }

.doc h2 { margin-top: 46px; }

.doc h2:first-child { margin-top: 0; }

.contact-box {
  grid-column: 3 / 10;
  margin-top: 40px;
  border-top: 1px solid var(--rule);
  padding-top: 20px;
  font-size: 15px;
}

.contact-box p { margin: 0 0 6px; }

/* ---------- pie ---------- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 34px 0 44px;
}

.footer-bay {
  grid-column: 1 / 13;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px 32px;
}

.footer-bay .f-name {
  font-family: var(--serif);
  font-size: 21px;
  color: var(--ink);
  text-decoration: none;
}

.footer-bay .f-name:hover { color: var(--accent); }

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 24px;
}

.footer-links a {
  font-size: 13px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.footer-links a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.footer-mail { font-size: 14px; }

.footer-rule {
  grid-column: 1 / 13;
  height: 1px;
  background: var(--rule);
  margin: 24px 0 12px;
}

.footer-fine {
  grid-column: 1 / 13;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- adaptación ---------- */

@media (max-width: 900px) {
  .grid { column-gap: 20px; padding: 0 24px; }
  .brand { grid-column: 1 / 8; }
  .site-nav { grid-column: 1 / 13; justify-self: start; }
  .hero h1,
  .hero-lead,
  .hero-note,
  h2,
  .prose,
  .dash,
  .list-wide,
  .steps,
  .ref,
  .page-head h1,
  .page-head p,
  .doc .prose,
  .contact-box { grid-column: 1 / 13; }
  .plate figure { grid-column: 1 / 13; }
  .caption { grid-column: 1 / 13; margin-top: 12px; }
  .detail-figure { grid-column: 1 / 8; }
  .detail-text { grid-column: 1 / 13; margin-top: 32px; }
  .rail {
    grid-column: 1 / 13;
    margin-bottom: 18px;
  }
  .rail-label { max-width: none; }
  .ticks {
    flex-direction: row;
    gap: 7px;
    margin-top: 12px;
  }
  .ticks span { height: 14px; }
  .plate .rail { order: -1; }
}

@media (max-width: 640px) {
  :root { --step: 48px; }
  body { font-size: 16px; }
  .grid { padding: 0 20px; }
  .hero { padding: 44px 0 var(--step); }
  .hero-lead { font-size: 17px; }
  .list-wide { columns: 1; }
  .detail-figure { grid-column: 1 / 13; }
  .ref div { grid-template-columns: 1fr; gap: 4px; }
  .site-nav ul { gap: 6px 18px; }
  .footer-bay { flex-direction: column; align-items: flex-start; }
  .page-head { padding: 40px 0 28px; }
}